[Intel-gfx] [PATCH 2/2] drm/i915/skl: Also detect eDRAM on SKL

[shuang.he at intel.com]

Tested-By: PRC QA PRTS (Patch Regression Test System Contact: shuang.he at intel.com)
Task id: 5707
-------------------------------------Summary-------------------------------------
Platform          Delta          drm-intel-nightly          Series Applied
PNV              +1                 282/283              283/283
ILK                 -3              316/319              313/319
SNB                                  322/346              322/346
IVB                 -2              382/384              380/384
BYT                                  296/296              296/296
HSW                                  425/428              425/428
BDW                                  318/333              318/333
-------------------------------------Detailed-------------------------------------
Platform  Test                                drm-intel-nightly          Series Applied
 PNV  igt_gen3_render_linear_blits      CRASH(1, M23)PASS(1, M25)      PASS(1, M25)
 ILK  igt_drv_suspend_fence-restore-tiled2untiled      DMESG_WARN(1, M37)PASS(1, M26)      DMESG_WARN(1, M37)
 ILK  igt_drv_suspend_fence-restore-untiled      DMESG_WARN(1, M37)PASS(1, M26)      DMESG_WARN(1, M37)
*ILK  igt_kms_flip_vblank-vs-hang      PASS(2, M26M37)      TIMEOUT(1, M37)
 IVB  igt_gem_pwrite_pread_snooped-pwrite-blt-cpu_mmap-performance      DMESG_WARN(1, M34)PASS(1, M21)      DMESG_WARN(1, M34)
*IVB  igt_gem_storedw_batches_loop_secure-dispatch      PASS(2, M21M34)      DMESG_WARN(1, M34)
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